beith



(No Model.) I I G. S. BEITH.- PIPE PLATE.

No. 570.368. Patented 0012.27, 1896. I

. NITED STATES PATENT OFFICE.

GEORGE S. BEITH, OF NElV YORK, N. Y.

PIPE-PLATE.

SPECIFICATION forming part of Letters Patent No. 570,368, dated October27, 1896.

Application filed July 25, 1896.

To all whmn it may concern.-

Be it known that I, GEORGE S. BEITH, a

citizen of the United States, and a resident of l the city, county, andState of New York, have invented certain new and useful Improvements inPipe-Plates, of which the following is a specification.

My invention relates to devices for covering or closing holes in pipes,and has special reference to the means employed for clamping thecap-plate or cover on the body of the pipe.

It is a common practice of plumbers and others, when the ordinarymethods for clearing a pipe fail, to break a hole or holes in the pipein order to ascertain the location of the obstruction and to assist inremoving the cause thereof.

The object of my invention is to provide simple and effective means forclamping a cap-plate over the holes, so that the plate can be quicklyapplied and as readily removed in case further access to the interior ofthe pipe should be found necessary.

I accomplish the object sought by provid- V ing a cap-plate fitting thepipe to be covered,

a clamp whose peculiar construction admits of its easy insertion throughthe hole in the pipe, and means for clamping the cap-plate to the pipe,as will be hereinafter more fully set forth and described.

In the accompanying drawings, Figure 1 is a longitudinal elevation of aportion of a pipe, showing ahole through the top thereof. Fig. 2 is asimilar view showing the cap-plate clamped on the pipe. Fig. 3 is a sideelevation of the cap-plate. Fig. 4 is a cross-section of the pipe andcap-plate, drawn on line 00 0c of Fig. 2, showing the clamping device inposition thereon. Fig. 5 is a detail view of the clamp andclamping-bolt. Fig. 6 is a side view of a modified form of clamp. Fig. 7is a plan view of the clamp shown in Fig. 6. Fig. Sis a plan view ofclamp shown in 5. Fig 9 is a side elevation of the clamp andclamping-bolt in their normal position, showing the clamp in theposition for insertion through the hole in the pipe. Fig. 10 is aperspective View of a modified form of clamp.

In the drawings and specification like letters indicate like parts.

Serial No. 600,478. on model.)

A is the pipe. (Shown in Fig. 1 witha portion of its upper wall brokenaway.)

13 is the cap-plate or cover, which saddles the pipe and covers the holetherein. It is preferably made with a central dome B, said dome having acentral aperture through which the clamping-bolt D passes.

C is the clamp. (Best shown in Figs. 5 and 10.) It may be made to fitthe shape or curve of the pipe for transverse or other application orstraight, so as to be used on any size of pipe. It is slightly raised toone side of its center of gravity the raised portion of the clamp beingpreferably arched or curved, with a longitudinal slot through suchraised portion, forming a seat on its under side for the head E of theclamping-bolt D. The bolt-head should conform to the seat and the end ofthe slot be so beveled as to allow the clamp to assume the positionshown in Fig. 9, thus facilitating its entrance through the hole in thepipe.

After the insertion of the clamp it is moved slightly to one side untilits upper or lighter end is brought into contact with the inner surfaceof the pipe. The clamping-bolt is then passed through the aperture inthe capplate, a washer G and lock-nut F are placed over the threadedbolt, and when the nut is screwed home the cap-plate is firmly clampedto the pipe, as shown in Figs. 2 and 4:.

To make a gas 'or water tight connection, white lead or cement or anyother suitable material may be placed between the cap-plate and pipe.

The shank of the clamping-bolt next its head should be squared, so as toprevent the displacement of the clamp, and also to prevent the turningof the bolt when the nut is screwed thereon.

\Vhile I have shown a clamp operated by a free bolt passing through andheld in a slot in said clamp it is evident that other forms forattaching the bolt to the clamp may be used Without departing from thevital features of my invention.

\Vhat I claim as new and of my own invention, for which I ask LettersPatent of the United States, is

1. A pipe-cover, for covering holes in pipes, consisting of a metallicplate fitting over the pipe, a clamp having a threaded bolt attachedthereto beyond the lineof the center ofgravity of said clamp, said boltpassing through an aperture in said metallic plate, and anut engagingwith said bolt,whereby the cap-plate is clamped to the pipe,substantially as set forth and described.

2. In a pipe-cover, the combination of a cap-plate having a central domethereon, a clamp having a slot longitudinally formed on one side of thecenter of gravity of said clan p a threaded bolt passing through theslot in said clamp and through an aperture in the cap-plate dome, and anut engagingwithsaid bolt for clamping the cap-plate on the pipe,substantially asset forthand described.

3. In a pipe-cover, the combination of a cap-plate with central domethereon, and a central aperture in said dome, a clamp sup, ported by athreaded bolt to one side of the center of gravity of said clamp,said-bolt passing-through the slot in said clamp and through theaperture in the cap-plate dome, and a nut for engagement Witlrsaidclamping-bolt, sub,-

4-. In a pipe-cover, the combination of a cap-plate-With central domethereon, a clamp having a longitudinal slot therein, said slottedportion raised or arched above the surface plane of said clamp, athreaded bolt passing through said slot and through the cap-plate, and anut engaging said bolt, substantially as set forth and described.

5. In a pipe-cover, the combination of capplate 13, having central domeB, clamp 0, having slotted arch O, threaded bolt D, with head E,thereon, said bolt passing through said slotted clamp and held thereinby the bolt-head, and through the cap-plate dome, and nut F, engagingwith said bolt, substantially as set forth and described.

In testimony that I claim the foregoing as inyinvention I have signed myname,.in presence of two witnesses, this 22d day of July, 1896'.

GEO; S; BEITI-I.

Witnesses WILLIAM G. BEITH,

stantially asset forth and described.

ARCHIBALD B. BEITH.

